View Compilation Error

0_0_13803474_20180.cpp:2:4: error: stray '#' in program
  2 #include<cmath>
    ^
0_0_13803474_20180.cpp:3:4: error: stray '#' in program
  3 #include<cstring>
    ^
0_0_13803474_20180.cpp:4:4: error: stray '#' in program
  4 #include<algorithm>
    ^
0_0_13803474_20180.cpp:2:2: error: expected unqualified-id before numeric constant
  2 #include<cmath>
  ^
0_0_13803474_20180.cpp:6:2: error: expected unqualified-id before numeric constant
  6 const int N=105;
  ^
0_0_13803474_20180.cpp:7:2: error: expected unqualified-id before numeric constant
  7 int on[N],off[N];
  ^
0_0_13803474_20180.cpp:8:2: error: expected unqualified-id before numeric constant
  8 char s[N];
  ^
0_0_13803474_20180.cpp:9:2: error: expected unqualified-id before numeric constant
  9 int main()
  ^